Tritherm 3 Port Motorised Valve 22mm
£41.00 excl VAT
- Reliable 230V 3-port diverter valve for domestic central heating and hot water systems.
- Suitable for Y-Plan configurations up to 26KW.
- Available in 22mm and 28mm compression fittings.
Tritherm 3-Port Motorised Zone Valve
The Tritherm 3-Port Motorised Valve is a high-performance diverter valve designed to control the flow of water in small bore domestic central heating systems. Capable of handling systems up to 90,000 Btu/h (26 KW), this valve manages the circulation between the radiator circuit and the hot water cylinder.
Key Product Features
| Feature | Detail | Benefit |
| Application | Domestic Central Heating |
Controls flow for both radiators and hot water cylinders3.
|
| Capacity | Up to 26 KW (90,000 Btu/h) |
Suitable for most standard residential heating systems4.
|
| Voltage | 230-240V ~ 50 Hz |
Standard mains compatibility5.
|
| Efficiency | 6W Power Consumption |
Low energy usage during operation6.
|
| Flexibility | 22mm & 28mm Options |
Available in standard compression fitting sizes (also 3/4″ & 1″ BSP)7.
|
| Operating Range | $+5^{\circ}\text{C}$ to $+88^{\circ}\text{C}$ |
Handles standard heating flow temperatures safely8. |
Efficient System Control (Y-Plan)
This valve is typically used in Y-Plan (Mid-Position) configurations. It acts as a diverter to direct hot water from the boiler to where it is needed most.
-
Port A: Directs flow to the Radiator(s).
-
Port B: Directs flow to the Hot Water Cylinder.
-
Mid-Position: Can allow flow to both simultaneously when demand is high.
Technical Specifications
| Detail | Specification |
| Voltage |
230-240V ~ 50 Hz 9
|
| Power Consumption |
6W 10
|
| Lead Supplied |
1 metre, 3 core 11
|
| Max. Ambient Temp |
$+52^{\circ}\text{C}$ 12
|
| Flow Temp Range |
$+5^{\circ}\text{C}$ to $+88^{\circ}\text{C}$ 13
|
| Fitting Sizes |
22mm, 28mm, 3/4″ BSP, 1″ BSP 14 |
Hydraulic Performance
The valve maintains efficient flow rates with minimal pressure drop. The following graph data represents the relationship between pressure drop and flow rate for different valve sizes (Kv values).
Flow vs. Pressure Drop Characteristics
| Pressure Drop (mwc) | Flow Rate (l/min) – K.V. 6.0 | Flow Rate (l/min) – K.V. 8.1 |
| 0.5 | ~18 | ~25 |
| 1.0 | ~28 | ~38 |
| 2.0 | ~40 | ~55 |
| 3.0 | ~50 | ~70 |
| 4.0 | ~60 | ~85 |
| 5.0 | ~70 | ~95 |
(Data derived from Flow Characteristics chart)
Dimensions
| Size Option | Width (A) | Height (E) |
| 22mm Compression | 87mm | 133mm |
| 28mm Compression | 87mm | 137mm |
| 3/4″ BSP | 87mm | 124mm |
| 1″ BSP | 87mm | 124mm |
(Refer to technical table )
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